** Changed in: nvidia-graphics-drivers-319-updates (Ubuntu Saucy)
Assignee: (unassigned) => Alberto Milone (albertomilone)
** Also affects: nvidia-graphics-drivers-319 (Ubuntu)
Importance: Undecided
Status: New
** Changed in: nvidia-graphics-drivers-319 (Ubuntu Saucy)
Status: New => Triaged
** Changed in: nvidia-graphics-drivers-319 (Ubuntu Saucy)
Importance: Undecided => Medium
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Ubuntu.
https://bugs.launchpad.net/bugs/1212425
Title:
SDK applications require /tmp access with nvidia (should honor TMPDIR)
Status in “apparmor-easyprof-ubuntu” package in Ubuntu:
Fix Released
Status in “nvidia-graphics-drivers-319” package in Ubuntu:
Triaged
Status in “nvidia-graphics-drivers-319-updates” package in Ubuntu:
Triaged
Status in “apparmor-easyprof-ubuntu” source package in Saucy:
Fix Released
Status in “nvidia-graphics-drivers-319” source package in Saucy:
Triaged
Status in “nvidia-graphics-drivers-319-updates” source package in Saucy:
Triaged
Status in “nvidia-graphics-drivers-tegra” source package in Saucy:
Invalid
Status in “nvidia-graphics-drivers-tegra3” source package in Saucy:
Invalid
Bug description:
Nvidia desktop users need the following AppArmor permissions to avoid denials:
owner /tmp/gl* mrw,
But this rule breaks application confinement such that apps are able
to tamper with each other. Interestingly, apps still run without the
rule, so we can explicitly deny it for now.
The use of /tmp is apparently hardcoded and does not honor TMPDIR
(application confinement will setup TMPDIR to a private area for the app).
strace confirms this:
24603 mkdir("/tmp", 0777) = -1 EEXIST (File exists)
24603 open("/tmp/glBRPYmm", O_RDWR|O_CREAT|O_EXCL, 0600) = -1 EACCES
(Permission denied)
While the use of O_EXCL is safe, we don't allow access to /tmp for
confined apps and libraries/applications should always honor TMPDIR.
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